征服情态动词之三

360影视 2025-01-08 08:14 3

摘要:+natural/strange/necessary/surprised/impossible/important + that”句型中,主语从句谓语动词用“should + 动词原形”,表示理所当然、奇怪、必要等意思。

一、should 的用法

1. 表示劝告:should 用于表示主语应该做正确且明智的事,体现说话人的劝告,主观语气比 must 轻。

- 例句:You shouldn't judge men always by the clothes.(你不应该总是以貌取人。)

2. 表示猜测:用于说话人较有把握地猜测、估计某事应该或将会发生。

- 例句:That should be Mary coming upstairs now.(现在上楼的应该是玛丽。)

3. 特定句型中的用法:it is ➕

+natural/strange/necessary/surprised/impossible/important + that”句型中,主语从句谓语动词用“should + 动词原形”,表示理所当然、奇怪、必要等意思。

- 例句:It is necessary that he should be sent there at once.(他有必要立即被派往那里。)

- 例句:It is strange that he should say so.(他竟然这样说,真是奇怪。)

- 在“lest(以免)、for fear that(以防)、in case(以防万一)”等词后,要用“should + 动词原形”。

- 例句:Let us go at once lest we should be late for the train.(我们马上走吧,以免赶不上火车。)

- 在“advice(建议)、suggest(建议)、order(命令)、demand(要求)、request(请求)”等词后的从句中,用“should do”

-例句Our teacher suggested that we should take exercise regularly.

二、ought to 的用法

1. 表示建议或义务:ought to 与 should 含义大致相同,都表示对做正确明智之事的建议或责任义务。

- 例句:You should/ought to have received report out by now.(你们现在应该已经收到报告了。)

- 例句:You were out enjoying yourself when you ought to have been studying.(你本该学习的时候却出去玩了。)

- 例句:You will catch a cold if you go out like that. I think you should/ought to take a hat.(你这样出去会感冒的。我觉得你应该戴顶帽子。)

- 例句:People should/ought to be warned of danger of swimming off this beach.(人们应该被告知在这片海滩游泳的危险。)

- 例句:I should/ought to visit my parents more often.(我应该更经常去看望我的父母。)

2. 表示惊讶等情绪:should 和 ought to 都可用于表示惊讶、意外等情绪,意为“竟然”。

- 例句:It's strange that such thing should happen in our school.(这样的事情竟然发生在我们学校,真是奇怪。)

三、真题演练

1. (2023 年某省高考真题)- You ______ hand in your homework tomorrow morning, or you will be punished.

- A. should B. may C. can D. would

解析:根据句意“你明天早上应该交作业,否则会受到惩罚”,这里表示应该做某事,用 should,答案选 A。

2. (2024 年模拟题)It is recommended that the young ______ more time with their elderly parents.

- A. spend B. spent C. should spend D. has spent

解析:在“It is recommended that...”句型中,从句要用“should + 动词原形”,should 可省略,这里表示建议年轻人应该多花时间陪年迈的父母,答案选 C。

掌握 should 和 ought to 的用法,对高中英语语法学习至关重要,同学们要多多练习哦!

来源:Xin神英语

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